Inner floating disc of petrochemical storage tank

Abstract

The utility model belongs to the technical field of petrochemical storage tank inner floating discs, and discloses a petrochemical storage tank inner floating disc which comprises a floating disc body, supporting legs are fixedly arranged at the bottom end of the floating disc body, a cover plate is rotatably arranged in the top end of the floating disc body, a base is rotatably arranged in the center of the top end of the cover plate, and a rotating shaft is fixedly arranged on the outer side of the base. A sealing assembly is further arranged on the outer side of the rotating shaft. The sealing assembly comprises a fixing plate fixedly arranged on the outer side of the rotating shaft, a long rod is fixedly arranged on the outer side of the fixing plate, a vertical shaft is arranged in the long rod in a penetrating mode, a sealing plate is fixedly arranged at the bottom end of the vertical shaft, and through the rotating shaft and the sealing plate structure in the sealing assembly, the long rod is connected with a rotating shaft base on the lower portion to rotate; when the sealing plate is separated from the gas outlet plate, an oil-gas mixture evaporated inside is discharged, and the situation that too much oil-gas mixture is generated between the floating disc and a petrochemical product, and the floating disc is jacked up to deflect is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of internal floating roofs for petrochemical storage tanks, and specifically relates to an internal floating roof for petrochemical storage tanks. Background Technique

[0002] The skeleton of the internal floating roof of the petrochemical storage tank is designed in a spider web shape, dividing the entire floating roof into several small units, and then fixing the cover plate on the upper part of the skeleton. The floating roof forms a honeycomb stress integral body, improving the structural strength and stiffness of the floating roof, making the floating roof operate smoothly without tilting or jamming. However, petrochemical products will continuously volatilize, forming a gap between the surface of the petrochemical products and the floating roof.

[0003] At the same time, the high-efficiency sealed internal floating roof with the application number 202323036569.7, "including a clamping block, the inner wall of the bottom of the clamping block is threadedly connected to the outer wall of the threaded column, the outer wall of the bottom of the threaded column is threadedly connected to the inner wall of the connecting rod, the bottom of the connecting rod is fixedly connected to the top of the fixed column, the two ends of the fixed column are fixedly connected to the inner wall of the disk body, the outer wall of the fixed column is fixedly connected to the inner wall of the disk body, the outer wall of the disk body is fixedly connected to the sealing ring, and a grid air chamber is arranged on the inner wall of the bottom of the disk body";

[0004] During the use of the existing internal floating roof of petrochemical storage tanks, due to the bubbles and cavities generated by the floating roof, the floating roof inside the petrochemical storage tank will be lifted, resulting in the floating roof shaking or even tilting directly, and further causing the floating roof to be unable to achieve a good sealing effect inside the petrochemical storage tank, resulting in the leakage of petrochemical products.

[0005] Therefore, an internal floating roof for petrochemical storage tanks is proposed to solve the above problems. Summary of the Utility Model

[0006] To solve the problems raised in the above background technique, the utility model provides an internal floating roof for petrochemical storage tanks, which has the advantage of being able to regularly discharge the evaporated gas generated inside to avoid the situation of the floating roof being lifted and shaking unstably.

[0007] To achieve the above object, the utility model provides the following technical solution: An internal floating roof for petrochemical storage tanks, including a floating roof body, a support leg is fixedly arranged at the bottom end of the floating roof body, a cover plate is rotatably arranged inside the top end of the floating roof body, a base is rotatably arranged at the center position of the top end of the cover plate, a rotating shaft is fixedly arranged outside the base, and a closing assembly is further included outside the rotating shaft;

[0008] The enclosed component includes a fixing plate fixedly arranged outside the rotating shaft. A long rod is fixedly arranged outside the fixing plate. A vertical shaft penetrates through the interior of the long rod. A sealing plate is fixedly arranged at the bottom end of the vertical shaft, and the sealing plate is slidably arranged with the cover plate. An air outlet plate is slidably arranged at the bottom end of the sealing plate, and the air outlet plate is fixedly arranged with the cover plate.

[0009] Preferably, a spring is sleeved outside the vertical shaft, and the spring is located between the long rod and the sealing plate.

[0010] Preferably, the bottom end of the sealing plate is made of insulating deformable rubber. The air outlet holes of the air outlet plate penetrate through the cover plate. Pulleys are rotatably arranged on both sides of the sealing plate.

[0011] Preferably, a limiting disc is fixedly arranged at the edge position of the top end of the cover plate, and the limiting disc is slidably arranged with the rotating shaft.

[0012] Preferably, a clamping seat is sleeved above the outside of the base. A threaded shaft is fixedly arranged at the top end of the clamping seat. A connecting seat is spirally arranged outside the threaded shaft. A second transmission rod is fixedly arranged at the top end of the connecting seat.

[0013] Preferably, a plug rod is fixedly arranged at the bottom end of the clamping seat, and the plug rod is inserted into the base. A second transmission rod is fixedly arranged at the top end of the connecting seat.

[0014] Preferably, a positioning ring is rotatably arranged below the outside of the base. A cross plate is fixedly arranged outside the positioning ring. A support seat is fixedly arranged at the other end of the cross plate. A counterweight block is slidably arranged inside the support seat. A first transmission rod is fixedly arranged at the top end of the counterweight block.

[0015] Preferably, a horizontal shaft penetrates through the counterweight block, and the horizontal shaft is fixedly arranged with the support seat.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. Through the rotating shaft and sealing plate structures in the enclosed component of the present utility model, the long rod is connected to the rotating shaft base below to rotate, thereby controlling the enclosed component outside to regularly discharge through the air outlet plate structure. When the sealing plate is separated from the air outlet plate, the evaporated oil and gas mixture inside is discharged, effectively avoiding the generation of excessive oil and gas mixture between the floating disc and petrochemical products and preventing the occurrence of the situation where the floating disc is lifted and skewed.

[0018] 2. Through the counterweight block and horizontal shaft structures of the present utility model, the counterweight block can be guided to move along the cross plate. After the counterweight block is controlled to move to different positions, different weights can be added to the cover plate to assist in pressing the cover plate and maintain a balanced pressing state. Description of the Drawings

[0019] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 Schematic diagram of the installation structure of the closing component of the present utility model;

[0021] Figure 3 Schematic diagram of the installation structure of the limit disk of the present utility model;

[0022] Figure 4 Schematic diagram of the installation structure of the rotating shaft of the present utility model;

[0023] Figure 5 Schematic diagram of the installation structure of the clamping seat of the present utility model.

[0024] In the figure: 1, floating disk body; 2, support leg; 3, cover plate; 4, limit disk; 5, rotating shaft; 6, base;

[0025] 7, closing component; 71, fixing plate; 72, long rod; 73, vertical shaft; 74, sealing plate; 75, spring; 76, pulley; 77, air outlet plate;

[0026] 8, positioning ring; 9, cross plate; 10, support seat; 11, counterweight; 12, horizontal shaft; 13, transmission rod one; 14, clamping seat; 15, threaded shaft; 16, connecting seat; 17, transmission rod two; 18, inserting rod. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0028] As Figures 1 to 5 shown, the present utility model provides an internal floating disk for a petrochemical storage tank, including a floating disk body 1. Support legs 2 are fixedly arranged at the bottom end of the floating disk body 1. A cover plate 3 is rotatably arranged inside the top end of the floating disk body 1. A base 6 is rotatably arranged at the center position of the top end of the cover plate 3. A rotating shaft 5 is fixedly arranged outside the base 6. The rotating shaft 5 rotates through the base 6 connected to the cover plate 3. A closing component 7 is also included outside the rotating shaft 5;

[0029] The closing assembly 7 includes a fixed plate 71 fixedly arranged on the outside of the rotating shaft 5, a long rod 72 fixedly arranged on the outside of the fixed plate 71, a vertical shaft 73 penetrating the inside of the long rod 72, a sealing plate 74 fixedly arranged on the bottom end of the vertical shaft 73, and the sealing plate 74 and the cover plate 3 are slidably arranged, an air outlet plate 77 is slidably arranged on the bottom end of the sealing plate 74, and the air outlet plate 77 is fixedly arranged on the cover plate 3, the fixed plate 71 drives the sealing plate 74 to rotate synchronously, and the sealing plate 74 can be offset from the air outlet hole surface of the air outlet plate 77 to perform a deflation operation.

[0030] Specifically, a spring 75 is sleeved on the outer side of the vertical shaft 73 , and the spring 75 is located between the long rod 72 and the sealing plate 74 . The spring 75 serves as an elastic structure to push the sealing plate 74 on the outer side of the long rod 72 to be pressed against the surface of the cover plate 3 .

[0031] Furthermore, the bottom end of the sealing plate 74 is set to insulating deformable rubber, the air outlet of the air outlet plate 77 passes through the cover plate 3, and pulleys 76 are rotatably set on both sides of the sealing plate 74. The sealing plate 74 can be pressed against the air outlet surface of the air outlet plate 77 by the insulating deformable rubber to be closed or opened.

[0032] Furthermore, a limit plate 4 is fixedly provided at the top edge of the cover plate 3, and the limit plate 4 is slidably provided with the rotating shaft 5, and the limit plate 4 is closed at the top of the cover plate 3 to protect the internal structure.

[0033] It is worth mentioning that a clamping seat 14 is sleeved on the upper outer side of the base 6, a threaded shaft 15 is fixedly provided on the top of the clamping seat 14, a connecting seat 16 is spirally provided on the outer side of the threaded shaft 15, and a transmission rod 17 is fixedly provided on the top of the connecting seat 16. The clamping seat 14 can be positioned by the threaded shaft 15, and the connecting seat 16 is assembled, and the movement is controlled by the transmission rod 17.

[0034] It is worth noting that a plug rod 18 is fixedly provided at the bottom end of the clamping seat 14, and the plug rod 18 is plugged into the base 6, and a transmission rod 17 is fixedly provided at the top end of the connecting seat 16, and the clamping seat 14 can be positioned inside the base 6 through the plug rod 18.

[0035] It is worth mentioning that a positioning ring 8 is rotatably provided at the lower outer side of the base 6, a horizontal plate 9 is fixedly provided at the outer side of the positioning ring 8, a support seat 10 is fixedly provided at the other end of the horizontal plate 9, a counterweight block 11 is slidably provided inside the support seat 10, a transmission rod 13 is fixedly provided at the top of the counterweight block 11, the counterweight block 11 can increase the counterweight in different directions of the cover plate 3 by moving outside the horizontal axis 12 to maintain the stability of the cover plate 3, a horizontal axis 12 runs through the inside of the counterweight block 11, and the horizontal axis 12 is fixed to the support seat 10.

[0036] Among them, the floating disk body 1, the supporting legs 2 and the cover plate 3 are prior arts and will not be elaborated here; at the same time, the present utility model also includes a power supply, a controller, a switch, etc., which are not the main technical points of this patent and will not be elaborated here.

[0037] Working principle and process:

[0038] The staff places the floating disk body 1 and the supporting legs 2 around the bottom end into the interior of the petrochemical storage tank to protect the petrochemical products inside. The counterweight 11 fixed to the transmission rod 13 can be installed on the outer side of the horizontal shaft 12 inside the support seat 10. After installation, the connecting seat 16 at the bottom end of the transmission rod 17 is installed on the outer side of the threaded shaft 15 at the top end of the clamping seat 14, and the clamping seat 14 is positioned on the base 6 through the insertion rod 18. During daily use, the transmission rod 17 can be connected to the top end of the petrochemical storage tank through a driver to control the transmission rod 17 to drive the connecting seat 16 and the base 6 below to rotate, which can effectively control the rotating shaft 5 to start rotating on the cover plate 3 inside the petrochemical storage tank, drive the rotating shaft 5 and the fixed plate 71 in the closing assembly 7 to start rotating synchronously, and then control the long rod 72 and the vertical shaft 73 to rotate, drive the sealing plate 74 at the bottom end of the vertical shaft 73 to rotate, and separate from the air outlet holes of the air outlet plate 77 at the top end of the cover plate 3. The air outlet holes are opened, and the oil and gas evaporates between the floating disk body 1 and the petrochemical products below are exported regularly to avoid the floating disk body 1 being lifted and skewed. After deflation, the sealing plate 74 is controlled to reset to the surface of the air outlet plate 77 for closing. During daily inspection, it can be observed whether the floating disk body 1 is skewed. Once skewed, the counterweight 11 can be controlled to move on the outer side of the horizontal shaft 12 through the transmission rod 13 to different positions on the cross plate 9 to change the counterweight orientation of the floating disk body 1 and keep the floating disk body 1 stable.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0040] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A floating plate in a petrochemical storage tank, comprising a floating plate body (1), characterized in that: A support leg (2) is fixedly provided at the bottom end of the floating plate body (1), a cover plate (3) is rotatably provided inside the top end of the floating plate body (1), a base (6) is rotatably provided at the center position of the top end of the cover plate (3), a rotating shaft (5) is fixedly provided on the outside of the base (6), and a sealing component (7) is also provided on the outside of the rotating shaft (5); The sealing component (7) comprises a fixing plate (71) fixedly arranged on the outside of the rotating shaft (5); a long rod (72) is fixedly arranged on the outside of the fixing plate (71); a vertical shaft (73) is penetrated through the inside of the long rod (72); a sealing plate (74) is fixedly arranged at the bottom end of the vertical shaft (73), and the sealing plate (74) and the cover plate (3) are slidably arranged; an air outlet plate (77) is slidably arranged at the bottom end of the sealing plate (74), and the air outlet plate (77) and the cover plate (3) are fixedly arranged.

2. The floating plate in a petrochemical storage tank according to claim 1, characterized in that: A spring (75) is sleeved on the outer side of the vertical shaft (73), and the spring (75) is located between the long rod (72) and the sealing plate (74).

3. The floating plate in a petrochemical storage tank according to claim 1, characterized in that: The bottom end of the sealing plate (74) is provided with insulating deformable rubber, the air outlet hole of the air outlet plate (77) penetrates the cover plate (3), and pulleys (76) are rotatably provided on both sides of the sealing plate (74).

4. The floating plate in a petrochemical storage tank according to claim 1, characterized in that: A limiting plate (4) is fixedly arranged at the top edge of the cover plate (3), and the limiting plate (4) and the rotating shaft (5) are slidably arranged.

5. The floating plate in a petrochemical storage tank according to claim 1, characterized in that: A clamping seat (14) is sleeved on the upper outer side of the base (6), a threaded shaft (15) is fixedly arranged on the top of the clamping seat (14), a connecting seat (16) is spirally arranged on the outer side of the threaded shaft (15), and a transmission rod 2 (17) is fixedly arranged on the top of the connecting seat (16).

6. The floating plate in a petrochemical storage tank according to claim 5, characterized in that: The bottom end of the clamping seat (14) is fixedly provided with an insertion rod (18), and the insertion rod (18) is plugged into the base (6), and the top end of the connecting seat (16) is fixedly provided with a second transmission rod (17).

7. The floating plate in a petrochemical storage tank according to claim 1, characterized in that: A positioning ring (8) is rotatably arranged at the lower outer side of the base (6), a transverse plate (9) is fixedly arranged at the outer side of the positioning ring (8), a support seat (10) is fixedly arranged at the other end of the transverse plate (9), a counterweight block (11) is slidably arranged inside the support seat (10), and a transmission rod (13) is fixedly arranged at the top end of the counterweight block (11).

8. The floating plate in a petrochemical storage tank according to claim 7, characterized in that: A transverse axis (12) passes through the interior of the counterweight block (11), and the transverse axis (12) is fixedly arranged on the support seat (10).

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